Lovemore kronos Kunorozva

Harvard Medical School | HMS · Division of Sleep Medicine

Background: Engagement in risk behaviours adopted during university continues after graduation, increasing the risk of non-communicable diseases (NCDs). This systematic review aimed to investigate the prevalence of NCD risk behaviours amongst South African university students. Methods: PubMed and Scopus databases were searched (January 1990-Apri...

Study Objectives: To test the feasibility of a novel at-home salivary Dim Light Melatonin Onset (DLMO) assessment protocol to measure the endogenous circadian phase of 10 individuals ( 1 Advanced Sleep-Wake Phase Disorder patient (ASWPD), 4 Delayed Sleep-Wake Phase Disorder patients (DSWPD), and 5 controls). Methods: The study involved 10 participa...

Objectives The aim of this study was to explore elite Para athletes´ and coaches´ perceptions of experiences of athlete health monitoring. Materials and Methods This study used a qualitative design, applying a phenomenographical approach. Thirteen athletes and six coaches from two different socioeconomic contexts (the Swedish and South African Par...

Inter-individual variability exists in recovery from jetlag following travel across time zones. Part of this variation may be due to genetic differences at the variable number tandem repeat (VNTR) polymorphism of the PERIOD3 (PER3) gene as this polymorphism has been associated with chronotype and sleep, as well as sensitivity to blue light on melat...

Elite Para athletes report a high incidence of sports injuries, illnesses and other health issues. Despite this, there are few prevention programmes in Para sport, and many of the existing prevention programmes are not adapted to Para athletes. To improve the success of preventive measures, it has been suggested that sports safety work should facil...

Objective To review risk factors associated with acute respiratory illness (ARill) in athletes, including non-infectious ARill and suspected or confirmed acute respiratory infections (ARinf). Design Systematic review. Data sources Electronic databases: PubMed-Medline, EbscoHost and Web of Science. Eligibility criteria Original research articles...

Objective To determine the incidence of acute respiratory illness (ARill) in athletes and by method of diagnosis, anatomical classification, ages, levels of performance and seasons. Design Systematic review and meta-analysis. Data sources Electronic databases: PubMed-Medline, EbscoHost and Web of Science. Eligibility criteria Original research a...

Background Sports-related concussion (SRC) is a common injury mostly in contact sports. Specifically, it is a public health concern for collegiate rugby athletes because at least one concussion is reported in every two games and concussion has been reported to increase the risk of developing neuro-degenerative disorders later in life.AimTo clinical...

Background: Sports-related concussion (SRC) is an injury with important implications, especially in collision and contact sports, and has a high symptom burden. Student athletes face particular psychosocial challenges, especially female students with pre-existing anxiety/depression are at increased risk for SRC, and have a higher symptom burden bef...

Background: Sports-related concussion (SRC) is an injury with important implications, especially in collision and contact sports, and has a high symptom burden. Student athletes face particular psychosocial challenges, especially female students with pre-existing anxiety/depression are at increased risk for SRC, and have a higher symptom burden be...

Introduction: Sports-related concussion is a common injury mostly in contact sports and is a public health concern for collegiate rugby athletes because at least one concussion is reported in every two games. Thus, a regular clinical audit of concussions is warranted in order to provide objective data pertaining to the injury so that pattern recogn...

Sport-related concussion (SRC) is an important injury with high burden. Evidence suggests that student athletes may face particular psycho-social challenges. Female students with comorbid anxiety / depression have increased risk for SRC, and higher symptom burden before and after injury. Yet, little research has been conducted in this area of inter...

Biosurfactants are amphiphilic molecules that interact with the surfaces of liquids leading to many useful applications. Most biosurfactants have been identified from cultured microbial sources, leaving a largely untapped resource of uncultured bacteria with potentially novel biosurfactant structures. To access the uncultured bacteria, a metagenomi...

The published online version contains mistake in the author list. Biosurfactants are amphiphilic molecules that interact with the surfaces of liquids leading to many useful applications. Most biosurfactants have been identified from cultured microbial sources, leaving a largely untapped resource of uncultured bacteria with potentially novel biosur...

Biosurfactants are amphiphilic molecules that interact with the surfaces of liquids leading to many useful applications. Most biosurfactants have been identified from cultured microbial sources, leaving a largely untapped resource of uncultured bacteria with potentially novel biosurfactant structures. To access the uncultured bacteria, a metagenomi...

Individual sport athletes have been shown to comprise unusually high proportions of morning-types (MTs) coupled with a higher prevalence of the morningness-associated PERIOD3 variable number tandem repeat (VNTR) allele, PER3(5). The degree to which type of sport selected is influenced by either chronotype or genotype, or the extent to which sportin...

The Impact of Circadian Rhythms on Sports Performance: A Study of Travelling Sports Teams Lovemore Kunorozva, PhD candidate1; Dr. Laura Roden1 and Dr. Dale Rae2 1Department of Molecular and Cell Biology, Faculty of Science, 2UCT/MRC Research Unit for Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, Uni...

Abstract A recent study found that South African endurance athletes are likely to be morning-types and carry the PER3(5) allele, which has been associated with a preference for mornings. The aim of this study was to measure the response of morning-type cyclists to a standardised bout of exercise performed at different times of the day. Participants...

A link between diurnal preference and a variable number tandem-repeat (VNTR) polymorphism in the PERIOD3 gene (PER3) has been demonstrated: the longer PER3 and shorter PER3 alleles with preferences for mornings and evenings, respectively. As many competitive events in South Africa for individual athletes are scheduled for the early mornings, we hyp...